Which complex exists as optical isomers?
A [Ag(NH₃)₂]⁺
B [Co(C₂O₄)₃]³⁻
C [Cu(EDTA)]²⁻
D [Cu(NH₃)₄(H₂O)]²⁺ - AQA - A-Level Chemistry - Question 27 - 2018 - Paper 3
Question 27
Which complex exists as optical isomers?
A [Ag(NH₃)₂]⁺
B [Co(C₂O₄)₃]³⁻
C [Cu(EDTA)]²⁻
D [Cu(NH₃)₄(H₂O)]²⁺
Worked Solution & Example Answer:Which complex exists as optical isomers?
A [Ag(NH₃)₂]⁺
B [Co(C₂O₄)₃]³⁻
C [Cu(EDTA)]²⁻
D [Cu(NH₃)₄(H₂O)]²⁺ - AQA - A-Level Chemistry - Question 27 - 2018 - Paper 3
Step 1
A [Ag(NH₃)₂]⁺
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Answer
This complex does not exhibit optical isomerism as it is linear and symmetrical.
Step 2
B [Co(C₂O₄)₃]³⁻
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Answer
This complex can exhibit optical isomerism due to its octahedral geometry with bidentate oxalate ligands, which can create non-superimposable mirror images.
Step 3
C [Cu(EDTA)]²⁻
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Answer
The EDTA ligand is a hexadentate ligand that can also produce optical isomers due to its ability to coordinate in such a way that creates stereoisomers.
Step 4
D [Cu(NH₃)₄(H₂O)]²⁺
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Answer
This complex does not exhibit optical isomerism as it is tetrahedral with symmetry.
![Which-complex-exists-as-optical-isomers?--A-[Ag(NH₃)₂]⁺-B-[Co(C₂O₄)₃]³⁻-C-[Cu(EDTA)]²⁻-D-[Cu(NH₃)₄(H₂O)]²⁺-AQA-A-Level Chemistry-Question 27-2018-Paper 3.png](https://cdn.simplestudy.cloud/assets/backend/uploads/question/Question_27_2018_Chemistry_P3.jpg)
